James Ferguson Cole

To James F. Cole & Sons, Chronometer & Watch Manufacturers, London

Catalogue no: 1098
Dewey No: Subject(s): Archives
Author(s): James Ferguson Cole
Total pages: 11 Illustrations: 0 Language(s): English Publication date: Nov. 14th, 1896
Editor: Publisher:
Dimensions: 260mm x 205mm Condition: Very good
Related titles: Related library records:
Notes:
An invoice from J.F.Cole to Robert Gardner, written in ink on headed paper for springing and timing five gold watches, nos. 51921, 51924, 51922, 51923, 51992, (two hunters, two half hunters, one crystal). Total cost 10 guineas.
Room location: Library Extension Cabinet: B Shelf: 4
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Specification of James Ferguson Cole - Chronometers - No. 4530

Catalogue no: 1024
Dewey No: Subject(s): Patents
Author(s): James Ferguson Cole
Total pages: 5 Illustrations: 1 fold out Language(s): English Publication date: 1821
Editor: Publisher: The Great Seal Patent Office
Dimensions: 290mm x 200mm Condition: Blue paper covers fragile
Related titles: Its About Time, by P. Chamberlain, pp 402-10. Related library records:
Notes:
Relating to, "Certain Improvements in Chronometers". Chamberlain describes this patent, "It was a pivoted detent escapement with safety pin, a locking plate on the balance staff, the passing spring in a reversed position, balance of a solid steel disc turned thin between hub and rim, a compensation giving effective lengths to balance spring and adjusted by tangent screw". Reprint of 1857
Room location: Library Cabinet: Q Shelf: 4
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